Dyes Extracted from Safflower, Medicago Sativa, and Ros Marinus Oficinalis as Photosensitizers for Dye-sensitized Solar Cells

Taya, Sofyan A.; El-Agez, Taher M.; Abdel-Latif, Monzir S.; Ghamri, Hatem; Batniji, Amal; Tabaza, Wael A.

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Title	Dyes Extracted from Safflower, Medicago Sativa, and Ros Marinus Oficinalis as Photosensitizers for Dye-sensitized Solar Cells
Authors	Taya, Sofyan A. El-Agez, Taher M. Abdel-Latif, Monzir S. Ghamri, Hatem Batniji, Amal Tabaza, Wael A.
ORCID
Keywords	Dye-sensitized solar cells Plant leaves Impedance spectroscopy
Type	Article
Date of Issue	2016
URI	http://essuir.sumdu.edu.ua/handle/123456789/44856
Publisher	Сумський державний університет
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Citation	Sofyan A. Taya, Taher M. El-Agez, Monzir S. Abdel-Latif, et al., J. Nano- Electron. Phys. 8 No 1, 01026 (2016)
Abstract	In this work, three extracts of plant leaves were used as sensitizers for dye-sensitized solar cells (DSSCs). These plants are Safflower, Medicago sativa and Ros marinus oficinalis. The natural dyes were extracted before and after grinding the plant leaves. The UV-VIS absorption spectra of the three extracts in ethyl alcohol solution were measured. The DSSCs were assembled using TiO2 films on Fluorine-doped tin oxide (FTO) coated glass. The DSSCs sensitized with the extracts of grinded leaves showed a better performance compared to those sensitized with un-grinded leaves with the highest efficiency of 0.115 % was obtained for the DSSC sensitized with Medicago sativa. The performance of the DSSCs sensitized with Safflower and Ros marinus oficinalis was significantly improved by acid treatment of the FTO substrates. Impedance spectroscopy of the fabricated cells was also carried out.
Appears in Collections:	Журнал нано- та електронної фізики (Journal of nano- and electronic physics)